Key points are not available for this paper at this time.
Abstract A silicic acid column chromatographic method for the fractionation of glyceride types, employing an all‐glass apparatus which permits gradient changes in solvent mixtures under pressure is described. Data on seven natural fats are discussed on the basis of the iodine values of individual fractions. The general trend in elution with the increasing concentration of ethyl ether in n‐hexane is governed by a) chain length and b) unsatuation of the constitutent fatty acids. Glycerides containing short‐chain acids are more strongly adsorbed than those containing long‐chain acids and glycerides containing unsaturated fatty acids are more strongly adsorbed in direct relation to unsaturation than those containing saturated acids of the same chain‐length.
Sahasrabudhe et al. (Wed,) studied this question.